"MUZAN!", Tanjiro yells as he falls into the seemingly Infinite Castle. "I WILL KILL YOU, NO MATTER WHAT COST!". There are a lot of buildings and the place is lit up with a hue of orange and yellow. Tanjiro glares at Muzan like the only thing he wants to do is kill him. 

"Oh, really?", Muzan smirks and then laughs as he looks down at Tanjiro. "Well, then, why don't we see you try?". He snaps his fingers, and an instrument plays - the same instrument that was played when they fell into this place. Suddenly, the whole place turns upside down, and the center of gravity seems to be shifting at an alarming rate. The buildings shift like they are at Muzan's command, which they probably are - but then why that strange instrument? Shouldn't Muzan be able to control it just like he controls his demons? Tanjiro lands on one of the floors, but then there it was again, that strange instrument, and the floor beneath Tanjiro disappears. Tanjiro was looking at a 200 foot drop, a drop certainly to end him. What could possibly go wrong?

FIRST CHAPTER COMING SOON!